The Simpson Strong-Drive SDW EWP-Ply structural wood screw is a high-strength fastener engineered specifically for connecting multi-ply wood members, including engineered wood products and solid sawn lumber. Designed to eliminate the need for predrilling, this screw streamlines installation in demanding structural framing applications. Its low-profile head sits flush after driving, making it ideal for assembling built-up girders, laminated veneer lumber (LVL), and structural composite lumber (SCL) where clean surfaces and connector-ready finishes matter. Code listed under IAPMO-UES ER-192 and compliant with 2015 and 2018 IRC and IBC requirements, this screw delivers confidence in engineered-wood framing and common wood construction applications alike.

Key Features

• No predrilling required - the SawTooth point self-starts in engineered lumber and solid sawn lumber, saving time and reducing labor during multi-ply assembly
• Low-profile head (0.760 in. diameter) - sits flush after installation so assembled girders stack and slide easily, and finishes or structural connectors can be applied without interference
• T40 6-Lobe drive - provides high torque transfer and reduces cam-out, giving installers better control when driving into dense engineered wood products
• E-coat electrocoating finish - provides a uniform, protective barrier against corrosion for interior structural wood applications
• Optimized 5 in. length with 1-1/2 in. thread - specifically sized for fastening 1-3/4 in. engineered lumber such as SCL, ensuring proper structural engagement without over-penetration
• 0.220 in. shank diameter - robust shank size delivers the load capacity needed for structural multi-ply connections in engineered-wood framing
• Code listed under IAPMO-UES ER-192 - meets 2015 and 2018 IRC and IBC requirements, so inspections and approvals proceed without guesswork

Why This Product

• Purpose-built for engineered wood assembly - the SDW EWP-Ply is specifically designed for multi-ply structural connections in SCL and similar engineered lumber, meaning it is not a general-purpose screw adapted for the job but a fastener engineered from the start for this application
• Eliminates a labor step on the job site - no predrilling means faster installation when building up girders or laminated members, reducing setup time without compromising structural integrity
• Flush head design keeps assemblies job-site ready - the low-profile head reduces interference after driving, so assembled multi-ply members can be handled, slid, stacked, or fitted with connectors and finishes immediately
• Backed by independent code listing - IAPMO-UES ER-192 certification and compliance with 2015 and 2018 IRC and IBC standards means this screw is accepted for structural wood framing and engineered-wood applications where code approval is required

Specifications

• Brand: Simpson Strong-Tie
• Shank Diameter (in.): 0.220
• Length (in.): 5
• Head Diameter (in.): 0.760
• Head Type: Low Profile Head
• Drive Type: T40 6-Lobe
• Point Type: SawTooth Point
• Thread Length (in.): 1 1/2
• Coating: E-coat Electrocoating
• Finish: E-coat Electrocoating
• Country of Origin: Taiwan

Available Pack Options

• SDW22500-R50: 50 Pk - includes one 6-lobe, T40 driver bit
• SDW22500MB: 200 Pk - includes one 6-lobe, T40 driver bit
• SDW22500: 600 Pk - includes two 6-lobe, T40 driver bits

Frequently Asked Questions

Does this screw require predrilling before installation?

No. The SDW EWP-Ply features a SawTooth point that self-starts and installs easily with no predrilling required, even in dense engineered wood products and solid sawn lumber.

What type of wood members is this screw designed to fasten?

This screw is specifically designed for fastening multi-ply wood members, including engineered wood products such as structural composite lumber (SCL) and solid sawn lumber. The 5 in. length is optimized for fastening 1-3/4 in. engineered lumber members.

What code approvals does this screw carry?

The Strong-Drive SDW EWP-Ply is code listed under IAPMO-UES ER-192 and meets 2015 and 2018 IRC and IBC code requirements for several common wood framing and engineered-wood applications.

What driver bit is needed to install this screw?

This screw uses a T40 6-Lobe drive, so a T40 Torx-style bit is required for installation. The 6-lobe configuration allows high torque transfer and reduces the risk of cam-out when driving into structural lumber.